/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:35:01,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:35:01,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:35:01,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 01:35:01,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:35:01,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:35:01,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:35:01,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:35:01,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:35:01,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:35:01,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:35:01,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:35:01,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:35:01,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:35:01,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:35:01,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:35:01,959 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:35:01,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:35:01,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:35:01,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:35:01,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:35:01,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:35:01,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:35:01,960 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:35:01,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:35:01,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:35:01,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:35:01,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:35:01,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:35:01,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:35:01,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:35:01,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:35:01,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:35:01,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:35:01,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:35:01,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:35:01,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:35:01,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:35:01,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:35:02,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:35:02,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:35:02,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:35:02,170 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:35:02,170 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:35:02,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-01-10 01:35:02,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a36dc6f36/9f81aa1ec5dd4c23a2698a866e7ccffd/FLAG3436688ad [2022-01-10 01:35:02,622 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:35:02,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-01-10 01:35:02,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a36dc6f36/9f81aa1ec5dd4c23a2698a866e7ccffd/FLAG3436688ad [2022-01-10 01:35:02,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a36dc6f36/9f81aa1ec5dd4c23a2698a866e7ccffd [2022-01-10 01:35:02,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:35:02,645 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:35:02,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:35:02,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:35:02,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:35:02,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:35:02" (1/1) ... [2022-01-10 01:35:02,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad5c9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:02, skipping insertion in model container [2022-01-10 01:35:02,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:35:02" (1/1) ... [2022-01-10 01:35:02,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:35:02,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:35:02,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2022-01-10 01:35:02,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:35:02,978 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:35:03,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2022-01-10 01:35:03,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:35:03,086 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:35:03,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03 WrapperNode [2022-01-10 01:35:03,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:35:03,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:35:03,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:35:03,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:35:03,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,148 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 946 [2022-01-10 01:35:03,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:35:03,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:35:03,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:35:03,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:35:03,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:35:03,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:35:03,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:35:03,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:35:03,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (1/1) ... [2022-01-10 01:35:03,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:35:03,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:35:03,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 01:35:03,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 01:35:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:35:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:35:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:35:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:35:03,353 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:35:03,355 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:35:04,005 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:35:04,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:35:04,012 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 01:35:04,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:04 BoogieIcfgContainer [2022-01-10 01:35:04,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:35:04,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:35:04,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:35:04,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:35:04,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:35:02" (1/3) ... [2022-01-10 01:35:04,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b05d7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:35:04, skipping insertion in model container [2022-01-10 01:35:04,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:03" (2/3) ... [2022-01-10 01:35:04,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b05d7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:35:04, skipping insertion in model container [2022-01-10 01:35:04,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:04" (3/3) ... [2022-01-10 01:35:04,020 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-01-10 01:35:04,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:35:04,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 01:35:04,069 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:35:04,077 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 01:35:04,077 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 01:35:04,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 258 states, 256 states have (on average 1.72265625) internal successors, (441), 257 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:04,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:35:04,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:04,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:04,099 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:04,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:04,103 INFO L85 PathProgramCache]: Analyzing trace with hash -165426501, now seen corresponding path program 1 times [2022-01-10 01:35:04,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:04,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249474950] [2022-01-10 01:35:04,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:04,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:04,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:04,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249474950] [2022-01-10 01:35:04,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249474950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:04,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:04,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:35:04,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111211150] [2022-01-10 01:35:04,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:04,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 01:35:04,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:04,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 01:35:04,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:35:04,526 INFO L87 Difference]: Start difference. First operand has 258 states, 256 states have (on average 1.72265625) internal successors, (441), 257 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:04,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:04,894 INFO L93 Difference]: Finished difference Result 1163 states and 1886 transitions. [2022-01-10 01:35:04,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 01:35:04,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-01-10 01:35:04,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:04,915 INFO L225 Difference]: With dead ends: 1163 [2022-01-10 01:35:04,915 INFO L226 Difference]: Without dead ends: 1022 [2022-01-10 01:35:04,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 01:35:04,922 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 3878 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:04,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3878 Valid, 3983 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:35:04,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-01-10 01:35:04,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 395. [2022-01-10 01:35:04,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 394 states have (on average 1.5076142131979695) internal successors, (594), 394 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:04,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 594 transitions. [2022-01-10 01:35:04,993 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 594 transitions. Word has length 96 [2022-01-10 01:35:04,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:04,993 INFO L470 AbstractCegarLoop]: Abstraction has 395 states and 594 transitions. [2022-01-10 01:35:04,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 594 transitions. [2022-01-10 01:35:05,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 01:35:05,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:05,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:05,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:35:05,002 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:05,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:05,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1176866191, now seen corresponding path program 1 times [2022-01-10 01:35:05,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:05,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878080252] [2022-01-10 01:35:05,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:05,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:05,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:05,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878080252] [2022-01-10 01:35:05,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878080252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:05,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:05,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:35:05,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092974337] [2022-01-10 01:35:05,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:05,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 01:35:05,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:05,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 01:35:05,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:35:05,205 INFO L87 Difference]: Start difference. First operand 395 states and 594 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:05,587 INFO L93 Difference]: Finished difference Result 1972 states and 3070 transitions. [2022-01-10 01:35:05,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 01:35:05,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-10 01:35:05,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:05,594 INFO L225 Difference]: With dead ends: 1972 [2022-01-10 01:35:05,594 INFO L226 Difference]: Without dead ends: 1676 [2022-01-10 01:35:05,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:35:05,600 INFO L933 BasicCegarLoop]: 750 mSDtfsCounter, 1783 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:05,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1783 Valid, 2078 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:35:05,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-01-10 01:35:05,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1666. [2022-01-10 01:35:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1665 states have (on average 1.5537537537537538) internal successors, (2587), 1665 states have internal predecessors, (2587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:05,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2587 transitions. [2022-01-10 01:35:05,744 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2587 transitions. Word has length 97 [2022-01-10 01:35:05,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:05,746 INFO L470 AbstractCegarLoop]: Abstraction has 1666 states and 2587 transitions. [2022-01-10 01:35:05,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:05,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2587 transitions. [2022-01-10 01:35:05,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:35:05,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:05,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:05,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:35:05,749 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:05,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1298319018, now seen corresponding path program 1 times [2022-01-10 01:35:05,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:05,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587343593] [2022-01-10 01:35:05,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:05,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:05,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:05,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:05,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587343593] [2022-01-10 01:35:05,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587343593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:05,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:05,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:35:05,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859589373] [2022-01-10 01:35:05,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:05,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:35:05,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:05,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:35:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:35:05,831 INFO L87 Difference]: Start difference. First operand 1666 states and 2587 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:06,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:06,330 INFO L93 Difference]: Finished difference Result 4636 states and 7277 transitions. [2022-01-10 01:35:06,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:35:06,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 01:35:06,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:06,340 INFO L225 Difference]: With dead ends: 4636 [2022-01-10 01:35:06,340 INFO L226 Difference]: Without dead ends: 3021 [2022-01-10 01:35:06,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:35:06,343 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1477 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:06,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 355 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:35:06,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2022-01-10 01:35:06,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 3019. [2022-01-10 01:35:06,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 3018 states have (on average 1.563949635520212) internal successors, (4720), 3018 states have internal predecessors, (4720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:06,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4720 transitions. [2022-01-10 01:35:06,608 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4720 transitions. Word has length 98 [2022-01-10 01:35:06,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:06,609 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4720 transitions. [2022-01-10 01:35:06,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:06,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4720 transitions. [2022-01-10 01:35:06,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:35:06,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:06,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:06,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 01:35:06,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:06,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:06,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2114426094, now seen corresponding path program 1 times [2022-01-10 01:35:06,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:06,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546346652] [2022-01-10 01:35:06,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:06,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:06,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:06,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546346652] [2022-01-10 01:35:06,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546346652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:06,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:06,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:35:06,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363000253] [2022-01-10 01:35:06,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:06,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:35:06,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:06,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:35:06,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:35:06,698 INFO L87 Difference]: Start difference. First operand 3019 states and 4720 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:07,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:07,276 INFO L93 Difference]: Finished difference Result 8182 states and 12873 transitions. [2022-01-10 01:35:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:35:07,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 01:35:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:07,293 INFO L225 Difference]: With dead ends: 8182 [2022-01-10 01:35:07,293 INFO L226 Difference]: Without dead ends: 5320 [2022-01-10 01:35:07,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:35:07,300 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1349 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:07,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 363 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:35:07,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5320 states. [2022-01-10 01:35:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5320 to 5318. [2022-01-10 01:35:07,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 5317 states have (on average 1.5653564039872108) internal successors, (8323), 5317 states have internal predecessors, (8323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 8323 transitions. [2022-01-10 01:35:07,716 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 8323 transitions. Word has length 98 [2022-01-10 01:35:07,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:07,717 INFO L470 AbstractCegarLoop]: Abstraction has 5318 states and 8323 transitions. [2022-01-10 01:35:07,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:07,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 8323 transitions. [2022-01-10 01:35:07,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:35:07,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:07,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:07,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 01:35:07,721 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:07,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:07,721 INFO L85 PathProgramCache]: Analyzing trace with hash -280718047, now seen corresponding path program 1 times [2022-01-10 01:35:07,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:07,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270928665] [2022-01-10 01:35:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:07,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:07,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:07,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270928665] [2022-01-10 01:35:07,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270928665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:07,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:07,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:35:07,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308670781] [2022-01-10 01:35:07,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:07,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:35:07,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:07,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:35:07,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:35:07,775 INFO L87 Difference]: Start difference. First operand 5318 states and 8323 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:08,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:08,705 INFO L93 Difference]: Finished difference Result 15000 states and 23599 transitions. [2022-01-10 01:35:08,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:35:08,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 01:35:08,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:08,735 INFO L225 Difference]: With dead ends: 15000 [2022-01-10 01:35:08,735 INFO L226 Difference]: Without dead ends: 9880 [2022-01-10 01:35:08,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:35:08,744 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 1337 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:08,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1337 Valid, 372 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:35:08,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9880 states. [2022-01-10 01:35:09,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9880 to 9878. [2022-01-10 01:35:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9878 states, 9877 states have (on average 1.5669737774627923) internal successors, (15477), 9877 states have internal predecessors, (15477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:09,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9878 states to 9878 states and 15477 transitions. [2022-01-10 01:35:09,623 INFO L78 Accepts]: Start accepts. Automaton has 9878 states and 15477 transitions. Word has length 98 [2022-01-10 01:35:09,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:09,623 INFO L470 AbstractCegarLoop]: Abstraction has 9878 states and 15477 transitions. [2022-01-10 01:35:09,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:09,623 INFO L276 IsEmpty]: Start isEmpty. Operand 9878 states and 15477 transitions. [2022-01-10 01:35:09,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:35:09,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:09,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:09,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 01:35:09,627 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:09,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:09,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1024308035, now seen corresponding path program 1 times [2022-01-10 01:35:09,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:09,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309620199] [2022-01-10 01:35:09,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:09,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:09,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:09,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:09,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309620199] [2022-01-10 01:35:09,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309620199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:09,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:09,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:35:09,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866902887] [2022-01-10 01:35:09,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:09,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:35:09,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:09,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:35:09,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:35:09,709 INFO L87 Difference]: Start difference. First operand 9878 states and 15477 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:11,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:11,416 INFO L93 Difference]: Finished difference Result 28884 states and 45351 transitions. [2022-01-10 01:35:11,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:35:11,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 01:35:11,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:11,462 INFO L225 Difference]: With dead ends: 28884 [2022-01-10 01:35:11,463 INFO L226 Difference]: Without dead ends: 19126 [2022-01-10 01:35:11,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:35:11,478 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1373 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:11,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1373 Valid, 359 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:35:11,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19126 states. [2022-01-10 01:35:13,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19126 to 19124. [2022-01-10 01:35:13,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19124 states, 19123 states have (on average 1.5631438581812478) internal successors, (29892), 19123 states have internal predecessors, (29892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19124 states to 19124 states and 29892 transitions. [2022-01-10 01:35:13,173 INFO L78 Accepts]: Start accepts. Automaton has 19124 states and 29892 transitions. Word has length 98 [2022-01-10 01:35:13,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:13,174 INFO L470 AbstractCegarLoop]: Abstraction has 19124 states and 29892 transitions. [2022-01-10 01:35:13,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:13,174 INFO L276 IsEmpty]: Start isEmpty. Operand 19124 states and 29892 transitions. [2022-01-10 01:35:13,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:35:13,184 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:13,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:13,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 01:35:13,184 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:13,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:13,185 INFO L85 PathProgramCache]: Analyzing trace with hash -866521676, now seen corresponding path program 1 times [2022-01-10 01:35:13,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:13,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361976216] [2022-01-10 01:35:13,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:13,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:13,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:13,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:13,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361976216] [2022-01-10 01:35:13,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361976216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:13,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:13,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:35:13,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88450310] [2022-01-10 01:35:13,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:13,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:35:13,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:13,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:35:13,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:35:13,247 INFO L87 Difference]: Start difference. First operand 19124 states and 29892 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:16,378 INFO L93 Difference]: Finished difference Result 56728 states and 88774 transitions. [2022-01-10 01:35:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:35:16,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 01:35:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:16,456 INFO L225 Difference]: With dead ends: 56728 [2022-01-10 01:35:16,457 INFO L226 Difference]: Without dead ends: 37694 [2022-01-10 01:35:16,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:35:16,490 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1399 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:16,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1399 Valid, 357 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:35:16,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37694 states. [2022-01-10 01:35:19,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37694 to 37692. [2022-01-10 01:35:19,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37692 states, 37691 states have (on average 1.5573479079886445) internal successors, (58698), 37691 states have internal predecessors, (58698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:19,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37692 states to 37692 states and 58698 transitions. [2022-01-10 01:35:19,956 INFO L78 Accepts]: Start accepts. Automaton has 37692 states and 58698 transitions. Word has length 98 [2022-01-10 01:35:19,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:19,956 INFO L470 AbstractCegarLoop]: Abstraction has 37692 states and 58698 transitions. [2022-01-10 01:35:19,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:19,956 INFO L276 IsEmpty]: Start isEmpty. Operand 37692 states and 58698 transitions. [2022-01-10 01:35:19,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:35:19,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:19,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:19,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 01:35:19,964 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:19,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:19,965 INFO L85 PathProgramCache]: Analyzing trace with hash -677209499, now seen corresponding path program 1 times [2022-01-10 01:35:19,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:19,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831374997] [2022-01-10 01:35:19,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:19,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:20,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:20,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831374997] [2022-01-10 01:35:20,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831374997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:20,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:20,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:35:20,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358310684] [2022-01-10 01:35:20,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:20,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:35:20,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:20,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:35:20,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:35:20,033 INFO L87 Difference]: Start difference. First operand 37692 states and 58698 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:26,325 INFO L93 Difference]: Finished difference Result 112444 states and 175228 transitions. [2022-01-10 01:35:26,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:35:26,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 01:35:26,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:26,472 INFO L225 Difference]: With dead ends: 112444 [2022-01-10 01:35:26,472 INFO L226 Difference]: Without dead ends: 74819 [2022-01-10 01:35:26,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:35:26,524 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1421 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:26,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1421 Valid, 357 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:35:26,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74819 states. [2022-01-10 01:35:32,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74819 to 74817. [2022-01-10 01:35:32,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74817 states, 74816 states have (on average 1.5499625748502994) internal successors, (115962), 74816 states have internal predecessors, (115962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74817 states to 74817 states and 115962 transitions. [2022-01-10 01:35:32,978 INFO L78 Accepts]: Start accepts. Automaton has 74817 states and 115962 transitions. Word has length 98 [2022-01-10 01:35:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:32,978 INFO L470 AbstractCegarLoop]: Abstraction has 74817 states and 115962 transitions. [2022-01-10 01:35:32,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:32,979 INFO L276 IsEmpty]: Start isEmpty. Operand 74817 states and 115962 transitions. [2022-01-10 01:35:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 01:35:32,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:32,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:32,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 01:35:32,991 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1615132955, now seen corresponding path program 1 times [2022-01-10 01:35:32,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:32,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001597602] [2022-01-10 01:35:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:32,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:33,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:33,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:33,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001597602] [2022-01-10 01:35:33,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001597602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:33,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:33,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 01:35:33,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99558251] [2022-01-10 01:35:33,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:33,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:35:33,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:33,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:35:33,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:35:33,090 INFO L87 Difference]: Start difference. First operand 74817 states and 115962 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:45,366 INFO L93 Difference]: Finished difference Result 149315 states and 230715 transitions. [2022-01-10 01:35:45,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:35:45,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 01:35:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:45,639 INFO L225 Difference]: With dead ends: 149315 [2022-01-10 01:35:45,639 INFO L226 Difference]: Without dead ends: 149313 [2022-01-10 01:35:45,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:35:45,683 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 362 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:45,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1477 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:35:45,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149313 states. [2022-01-10 01:35:53,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149313 to 76353. [2022-01-10 01:35:53,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76353 states, 76352 states have (on average 1.5388987845766975) internal successors, (117498), 76352 states have internal predecessors, (117498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:53,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76353 states to 76353 states and 117498 transitions. [2022-01-10 01:35:53,730 INFO L78 Accepts]: Start accepts. Automaton has 76353 states and 117498 transitions. Word has length 99 [2022-01-10 01:35:53,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:53,730 INFO L470 AbstractCegarLoop]: Abstraction has 76353 states and 117498 transitions. [2022-01-10 01:35:53,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:53,730 INFO L276 IsEmpty]: Start isEmpty. Operand 76353 states and 117498 transitions. [2022-01-10 01:35:53,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 01:35:53,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:53,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:53,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 01:35:53,742 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:53,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:53,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1815671702, now seen corresponding path program 1 times [2022-01-10 01:35:53,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:53,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104016772] [2022-01-10 01:35:53,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:53,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:53,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:53,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:53,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104016772] [2022-01-10 01:35:53,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104016772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:53,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:53,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 01:35:53,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36830218] [2022-01-10 01:35:53,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:53,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 01:35:53,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:53,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 01:35:53,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 01:35:53,942 INFO L87 Difference]: Start difference. First operand 76353 states and 117498 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)